Trade-Specific Associations for Subcontractors
Trade Associations •
International Association of Bridge, Structural, Ornamental, and Reinforcing Iron Workers (IW)
International Association of Bridge, Structural, Ornamental, and Reinforcing Iron Workers (IW)
The International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers, AFL-CIO is a trade association representing 120,000 union iron workers. It provides training, education, and advocacy to protect and advance the iron industry in North America.

Trusted by trade contractors across the country












- Ability to participate in a collective bargaining agreement that provides bigger paychecks, better benefits, more secure jobs, and safe working conditions
- Eligibility for Union Plus benefits and discounts
- Access to life, accident & hospital supplemental benefits for ironworkers
- 120+ years of digital magazine archives covering every aspect of the iron industry
Trade-Specific Associations for Subcontractors
Trade Contractors Get Paid Faster with Siteline
Other trade associations
Wall & Ceiling Alliance (WACA)
The Wall And Ceiling Alliance (WACA) is a trade association that promotes and advocates for the welfare of its members in the wall and ceiling industry. It provides educational forums, technical assistance, government advocacy, labor relations, industry promotion, and unified representation for its community.
National Fireproofing Contractors Association (NFCA)
The National Fireproofing Contractors Association represents fireproofing contractors and manufacturers, equipment suppliers, and inspection agencies who install, inspect, or provide passive fire protection for built structures. It provides education and advocacy to promote fire-resistance in buildings.
National Association of Minority Contractors (NAMC)
The National Association of Minority Contractors is dedicated to promoting the economic and legal interests of minority contracting firms, advocating for inclusion and equality in the construction industry. NAMC assists members with building capacity by providing access to opportunity, advocacy, and contractor development training.